Print Email Facebook Twitter Design Trade-Offs Between the Coupled Coils’ Inductance and the Series-Series Compensation Capacitance for EV Wireless Charging Systems Title Design Trade-Offs Between the Coupled Coils’ Inductance and the Series-Series Compensation Capacitance for EV Wireless Charging Systems Author Grazian, F. (TU Delft DC systems, Energy conversion & Storage) Soeiro, Thiago B. (TU Delft DC systems, Energy conversion & Storage) Bauer, P. (TU Delft DC systems, Energy conversion & Storage) Date 2022 Abstract Nowadays, inductive power transfer (IPT) with magnetic resonance is the most used method for high-power wireless battery charging applications. Once the topology of the compensation network and the operating frequency are selected, there are infinite combinations of the circuit equivalent inductance and compensation capacitance values resonating at that frequency. Choosing an appropriate ratio between these passive devices is essential to meet the target output power while ensuring that the required DC input and output voltages are found within the permitted range limited by the power source and the battery load. This paper proposes design trade-offs for selecting the optimum ratio between the inductance and capacitance in IPT systems with series-series compensation applicable to any power level. First, the target mutual inductance must be computed. Based on that, the coupled coils are designed depending on the physical constraints. An example is provided considering a 3.7 kW wireless charging system for electric vehicles (EVs) where different coils’ combinations are analyzed through the finite element method. The most suitable design is implemented, achieving or the application a relatively high measured peak DC-to-DC efficiency of about 96.24% at 3.28kW while the coils are aligned with 11cm distance. The required power is delivered at different battery voltages and coils’ alignments by regulating the DC input voltage. Subject Electric vehiclesinductive power transferseries-series compensation networkwireless charging To reference this document use: http://resolver.tudelft.nl/uuid:a5742973-0be3-4aa0-b9b0-29a40a73cca7 DOI https://doi.org/10.1109/SPEEDAM53979.2022.9842278 Publisher IEEE Embargo date 2023-07-01 ISBN 978-1-6654-8460-2 Source Proceedings of the 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) Event 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2022-06-22 → 2022-06-24, Sorrento, Italy Series 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2022 F. Grazian, Thiago B. Soeiro, P. Bauer Files PDF Design_Trade_Offs_Between ... tems_1.pdf 1.77 MB Close viewer /islandora/object/uuid:a5742973-0be3-4aa0-b9b0-29a40a73cca7/datastream/OBJ/view